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A/B Split & Multivariate Test Duration Calculator

Get comprehensive insights about testing, optimization, UX, design, and more.

How long should you run your A/B Test?

Estimated existing conversion rate (%)


Minimum improvement in conversion rate you want to detect (%)


Number of variations/combinations (including control)


Average number of daily visitors


Percent visitors included in test?


Total number of days to run the test:

Learn more about how to research A/B testing ideas and create winning tests through our detailed guide.

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